package com.cwb.study.springbootstudy.utill;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.Serializable;
import java.util.List;

public class StudyResult implements Serializable {

    private static final Logger LOGGER = LoggerFactory.getLogger(StudyResult.class);

    // 定义jackson对象
    private static final ObjectMapper MAPPER = new ObjectMapper();

    // 响应业务状态
    private Integer status;

    // 响应消息
    private String msg;

    // 响应中的数据
    private Object data;

    public static StudyResult build(Integer status, String msg, Object data) {
        return new StudyResult(status, msg, data);
    }

    public static StudyResult ok(Object data) {
        return new StudyResult(data);
    }

    public static StudyResult ok() {
        return new StudyResult(null);
    }

    public static StudyResult info(String msg) {
        return new StudyResult(201, msg, null);
    }

    public static StudyResult errorState(String msg) {
        return build(202, msg);
    }

    public static StudyResult error(String msg) {
        return build(0, msg);
    }

    public static StudyResult error(String msg, Object data) {
        return build(0, msg, data);
    }

    public static StudyResult dubboError(String msg) {
        return build(300, msg);
    }

    public static StudyResult dubboError(String msg, Object data) {
        return build(300, msg, data);
    }

    public StudyResult() {

    }

    public static StudyResult build(Integer status, String msg) {
        return new StudyResult(status, msg, null);
    }

    public StudyResult(Integer status, String msg, Object data) {
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    public StudyResult(Object data) {
        this.status = 200;
        this.msg = "OK";
        this.data = data;
    }

//    public Boolean isOK() {
//        return this.status == 200;
//    }

    public Integer getStatus() {
        return status;
    }

    public void setStatus(Integer status) {
        this.status = status;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

    /**
     * 将json结果集转化为TaotaoResult对象
     *
     * @param jsonData json数据
     * @param clazz    TaotaoResult中的object类型
     * @return
     */
    public static StudyResult formatToPojo(String jsonData, Class<?> clazz) {
        try {
            if (clazz == null) {
                return MAPPER.readValue(jsonData, StudyResult.class);
            }
            JsonNode jsonNode = MAPPER.readTree(jsonData);
            JsonNode data = jsonNode.get("data");
            Object obj = null;
            if (clazz != null) {
                if (data.isObject()) {
                    obj = MAPPER.readValue(data.traverse(), clazz);
                } else if (data.isTextual()) {
                    obj = MAPPER.readValue(data.asText(), clazz);
                }
            }
            return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj);
        } catch (Exception e) {
            LOGGER.error(e.getMessage());
            return null;
        }
    }

    /**
     * 没有object对象的转化
     *
     * @param json
     * @return
     */
    public static StudyResult format(String json) {
        try {
            return MAPPER.readValue(json, StudyResult.class);
        } catch (Exception e) {
            LOGGER.error(e.getMessage());
            e.printStackTrace();
        }
        return null;
    }

    /**
     * Object是集合转化
     *
     * @param jsonData json数据
     * @param clazz    集合中的类型
     * @return
     */
    public static StudyResult formatToList(String jsonData, Class<?> clazz) {
        try {
            JsonNode jsonNode = MAPPER.readTree(jsonData);
            JsonNode data = jsonNode.get("data");
            Object obj = null;
            if (data.isArray() && data.size() > 0) {
                obj = MAPPER.readValue(data.traverse(),
                        MAPPER.getTypeFactory().constructCollectionType(List.class, clazz));
            }
            return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj);
        } catch (Exception e) {
            LOGGER.error(e.getMessage());
            return null;
        }
    }

    /**
     * 用户名为空
     * <p>Title: UserNameIsNull</p>
     * <p>Description: </p>
     *
     * @return
     */
    public static StudyResult UserNameIsNull() {
        return build(201, "请输入用户名！");
    }

    /**
     * 用户名为空
     * <p>Title: UserNameIsNull</p>
     * <p>Description: </p>
     *
     * @return
     */

    public static StudyResult PasswordIsNull() {
        return build(202, "请输入用户密码！");
    }

    public static StudyResult LoginError() {
        return build(203, "登录失败！用户名或密码有误");
    }
}
